256602996

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{769}}^1$

素因数の和:846

約数の個数: 144

約数和(自身を含む): 753392640

約数和(自身を除く): 496789644

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 23, 26, 31, 36, 39, 46, 52, 62, 69, 78, 92, 93, 117, 124, 138, 156, 186, 207, 234, 276, 279, 299, 372, 403, 414, 468, 558, 598, 713, 769, 806, 828, 897, 1116, 1196, 1209, 1426, 1538, 1612, 1794, 2139, 2307, 2418, 2691, 2852, 3076, 3588, 3627, 4278, 4614, 4836, 5382, 6417, 6921, 7254, 8556, 9228, 9269, 9997, 10764, 12834, 13842, 14508, 17687, 18538, 19994, 23839, 25668, 27684, 27807, 29991, 35374, 37076, 39988, 47678, 53061, 55614, 59982, 70748, 71517, 83421, 89973, 95356, 106122, 111228, 119964, 143034, 159183, 166842, 179946, 212244, 214551, 229931, 286068, 309907, 318366, 333684, 359892, 429102, 459862, 548297, 619814, 636732, 689793, 858204, 919724, 929721, 1096594, 1239628, 1379586, 1644891, 1859442, 2069379, 2193188, 2759172, 2789163, 3289782, 3718884, 4138758, 4934673, 5578326, 6579564, 7127861, 8277516, 9869346, 11156652, 14255722, 19738692, 21383583, 28511444, 42767166, 64150749, 85534332, 128301498, 256602996]

約数ペア:

[(1, 256602996), (2, 128301498), (3, 85534332), (4, 64150749), (6, 42767166), (9, 28511444), (12, 21383583), (13, 19738692), (18, 14255722), (23, 11156652), (26, 9869346), (31, 8277516), (36, 7127861), (39, 6579564), (46, 5578326), (52, 4934673), (62, 4138758), (69, 3718884), (78, 3289782), (92, 2789163), (93, 2759172), (117, 2193188), (124, 2069379), (138, 1859442), (156, 1644891), (186, 1379586), (207, 1239628), (234, 1096594), (276, 929721), (279, 919724), (299, 858204), (372, 689793), (403, 636732), (414, 619814), (468, 548297), (558, 459862), (598, 429102), (713, 359892), (769, 333684), (806, 318366), (828, 309907), (897, 286068), (1116, 229931), (1196, 214551), (1209, 212244), (1426, 179946), (1538, 166842), (1612, 159183), (1794, 143034), (2139, 119964), (2307, 111228), (2418, 106122), (2691, 95356), (2852, 89973), (3076, 83421), (3588, 71517), (3627, 70748), (4278, 59982), (4614, 55614), (4836, 53061), (5382, 47678), (6417, 39988), (6921, 37076), (7254, 35374), (8556, 29991), (9228, 27807), (9269, 27684), (9997, 25668), (10764, 23839), (12834, 19994), (13842, 18538), (14508, 17687)]